Patents by Inventor Robert F. Guenther

Robert F. Guenther has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 7992602
    Abstract: The present invention relates to devices, kits and methods to aid the home owner in the transport of salt to their cellar-based water softening system. The device of the present invention uses rectangular piping because of the greater ease of supporting the piping and greater stability during use.
    Type: Grant
    Filed: May 4, 2007
    Date of Patent: August 9, 2011
    Inventor: Robert F. Guenther